Viki Joergens Dr. rer. nat. Viki Joergens Astronomer Margarete von Wrangell Fellow EC Marie Curie Intra-European Fellow Center for Astronomy Heidelberg, Institute of Theoretical Astrophysics (ITA Heidelberg, Germany) Max-Planck-Institute for Astronomy (MPIA Heidelberg, Germany), Phone: + 49 - 6221 - 528 464, Email: viki @ mpia.de Upcoming:       "50 Years of Brown Dwarfs: from Theoretical Prediction to Astrophysical Studies" (Intern. Conference at Ringberg castle, Oct 21-24, 2012)                           "Disks, accretion and outflows of brown dwarfs" (Splinter session at Coolstars 17 conference, Barcelona, June 24-29, 2012) Teaching:         Lecture on Extrasolar Planets & Brown dwarfs 2011/12 , University of Heidelberg, Start: Oct 20, 2011, 2:15 pm                           Seminar on Extrasolar Planets & Brown dwarfs 2011/12 (MVSem) , University of Heidelberg, Start: Oct 21, 2011, 11:15 am List of publications:         Refereed Publications             Proceedings of Conferences             Complete list of publications (PDF)                                               Orbit of the young very low-mass spectroscopic binary CHXR 74 (Joergens, Janson, Müller 2012, A&A 537, A13) Curriculum Vitae: PDF Previous: "Formation, atmospheres and evolution of brown dwarfs", Splinter meeting at the AG Tagung 2011 in Heidelberg, Sept 20-21, 2011 Previous Brown dwarf splinter seminars at MPIA Lecture on Extrasolar Planets and Brown dwarfs 2010/11 (University of Heidelberg) Improved radial velocity orbit of the young binary brown dwarf candidate ChaHa8   (Joergens, Müller, Reffert 2010, A&A 521, A24) "Planets around Young Stars" Lecture at ASTROCAM School, Madrid, Jun 29 - Jul 3, 2009 Braune Zwerge: Gescheiterte Sterne oder Superplaneten ? (Poster zum Tag der offenen Tür am MPIA, Mai 2009) How do planets and brown dwarfs form ? Astronomers revealed in the last decade that the substellar mass regime is densely and continuously populated. Previously we knew only nine Solar System planets in this domain. The detection of more than 300 planets orbiting other stars than our Sun, and hundreds of so-called brown dwarfs, which fill the gap in mass between planets and stars, challenges our view of how are Solar Systems formed. Through application of cutting-edge observing techniques and facilities, I am observationally exploring the processes that lead to the formation of planets and brown dwarfs. RV Survey for planets of brown dwarfs and close brown dwarf binaries Binary frequency of brown dwarfs at < 3 AU (Joergens, A&A 2008) 16-20 Jupiter mass RV companion orbiting the brown dwarf candidate Chaha8 (ApJ Letter 2007) Review articles on the formation of brown dwarfs: Protostars & Planets V (Luhman, Joergens et al. 2007) Reviews in Modern Astronomy (Joergens 2005) Towards interferometric observations of extrasolar planetary atmospheres Joergens & Quirrenbach 2005, Coolstars 13 Joergens & Quirrenbach 2004, SPIE Rotation of young brown dwarfs Absolute rotation periods (Joergens et al. 2003, ApJ) Rotational velocities (Joergens & Guenther 2001, A&A Letter) Draaisnelheid Lithium abundances of young brown dwarfs (Johnas, Guenther, Joergens et al. 2007, A&A) Doppler tomography of Cataclysmic Variable Stars Viki Joergens / viki @ mpia.de